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PMNT substrate

PMNT substrate

 

The main performance parameters

Product Name:

PMN-PT single crystal substrate

Chemical formula:

Pb(Mg0.33Nb0.67)O3 - PbTiO3

Crystal Structure :

R3m ,  Rhombohedral

Lattice constant:

A0 ~4.024 A(pseudo-cubic, varieswith composition)

Melting point:

1280 °C

Density:

8.1 g/cm3

Piezoelectric coefficient D33

1500~2100 pC/N

Coupling constant K33 (longitudinal mode) :

>92%

Kt (thickness mode) :

59-62%

K33' (beam mode) :   

84-88%

Dielectric constant E (at 1kHz after poling) :

4000 - 7000

Dielectric loss:

Tan d<0.9

Curie temperature  :

135-150 °C

The coercive field probably  :

2-3kV/cm

Remnant polarization  :

20 uC/cm2

Polarization or Gold-coating

 Upon requirements

Packing:

 Each piece individual packed in one bag, class-100 clean bag, in class-100 clean room

 

Standard Specification
Product Name Orientation Standard Size Thickness Polishing  
PMN-PT substrate <100> ±0.5°
<110> ±0.5°
<111> ±0.5°
Or other off-angle
10x10mm
10x5mm
5x5mm
φ10mm x 0.5mm
Or others
0.2mm
0.5mm
1.0mm
3.0mm
Or others
Fine ground
Single side polished
Double side polished

Roughness: Ra<5A(0.5nm)
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The PMN-PT substrate is a Relaxor ferroelectric single crystal, we can growth high-quality and large-sized of PMN-PT crystal by using the growth method of Bridgman. It has excellent piezoelectric properties, nonlinear optical properties and pyroelectric properties, PMNT substrate is the core material of a new generation of high-performance piezoelectric transducers, nonlinear optics and photodetector components (such as infrared detectors), Moreover, it also provides a good research carrier for the majority of researchers.

 

 
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